405964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 789488

約数和(自身を除く): 383524

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 211, 422, 481, 844, 962, 1924, 2743, 5486, 7807, 10972, 15614, 31228, 101491, 202982, 405964]

約数ペア:

[(1, 405964), (2, 202982), (4, 101491), (13, 31228), (26, 15614), (37, 10972), (52, 7807), (74, 5486), (148, 2743), (211, 1924), (422, 962), (481, 844)]